# define the amount of emails you want to send per period. If 0, batch processing# is disabled and messages are sent out as fast as possibledefine("MAILQUEUE_BATCH_SIZE",0);

# define the length of one batch processing period, in seconds (3600 is an hour)define("MAILQUEUE_BATCH_PERIOD",3600);

# to avoid overloading the server that sends your email, you can add a little delay# between messages that will spread the load of sending# you will need to find a good value for your own server# value is in seconds, and you can use fractions, eg "0.5" is half a second# (or you can play with the autothrottle below)define('MAILQUEUE_THROTTLE',0);